Home / 212,915.04-293,812.80-122,208

Finding the Fourth Proportional to 212,915.04, 293,812.80 and 122,208

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Solution

The fourth proportional to 212,915.04, 293,812.80 and 122,208 is: 168,641.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,915.04 : 293,812.80 = 122,208 : x
  2. Step 2: Convert to fraction form
    212,915.04/293,812.80 = 122,208/x
  3. Step 3: Cross multiply
    212,915.04x = 293,812.80 × 122,208
  4. Step 4: Simplify right side
    212,915.04x = 35,906,274,662.40
  5. Step 5: Solve for x
    x = 35,906,274,662.40/212,915.04
  6. Step 6: Final answer
    x = 168,641.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.